Finding the Fourth Proportional to 2,191.86, 3,024.77 and 1,197.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.86 : 3,024.77 = 1,197.15 : x
2. Step 2: Convert to fraction form
   2,191.86/3,024.77 = 1,197.15/x
3. Step 3: Cross multiply
   2,191.86x = 3,024.77 × 1,197.15
4. Step 4: Simplify right side
   2,191.86x = 3,621,097.42
5. Step 5: Solve for x
   x = 3,621,097.42/2,191.86
6. Step 6: Final answer
   x = 1,652.07